Add a misc folder for html codegen tests

Author: kMutagene

tests/CoreTests/CoreTests/CoreTests.fsproj

@@ -10,6 +10,9 @@
   <ItemGroup>
     <EmbeddedResource Include="..\..\..\src\Plotly.NET\plotly-2.19.1.min.js" />
     <EmbeddedResource Include="..\..\..\src\Plotly.NET\plotly-2.19.1.min.js.LICENSE.txt" />
+    <Compile Include="HtmlCodegen\Misc\ChartLayout.fs" />
+    <Compile Include="HtmlCodegen\Misc\MulticategoryData.fs" />
+    <Compile Include="HtmlCodegen\Misc\SimpleTests.fs" />
     <!--Test charts-->
     <Compile Include="HTMLCodegen\Chart2D.fs" />
     <Compile Include="HtmlCodegen\Chart3D.fs" />
@@ -32,9 +35,6 @@
     <Compile Include="Traces\TraceStaticMembers.fs" />
     <Compile Include="Traces\TraceStyle.fs" />
     <Compile Include="Traces\TraceID.fs" />
-    <Compile Include="HtmlCodegen\SimpleTests.fs" />
-    <Compile Include="HtmlCodegen\ChartLayout.fs" />
-    <Compile Include="HtmlCodegen\MulticategoryData.fs" />
     <Compile Include="Main.fs" />
   </ItemGroup>